致密砂岩气藏应力敏感性评价方法研究

Study on the Evaluation Methods of Tight Sandstone Gas Reservoir's Stress Sensitivity

在评价致密砂岩气藏应力敏感性时,选用不同的初始应力、步长、终止应力及评价方法,都将影响储层应力敏感性评价的结果。在数据对比分析的基础上针对上述问题开展研究,推荐一套针对致密砂岩气藏应力敏感性的评价方法。

Through extensive literature survey we found that the evaluation result of tight sandstone gas reservoir＇ s stress sensitivity is seriously affected by the different evaluation methods and the initial stress,step size and terminal stress. In response to these problems this research was carried out based on the statistical analysis of data. Finally,the improved evaluation methods of tight sandstone gas reservoir were recommended.